[  516.995083] bond0: (slave eth0): making interface the new active one
[  516.995157] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.252221] bond0: (slave eth0): Releasing backup interface
[  521.367149] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.589029] bond0: (slave eth0): Releasing backup interface
[  525.627008] bond0 (unregistering): Released all slaves